Machine for cold-rolling disks.



A. L. DOW.

MACHINE FOR GOLD ROLLING DISKS.

APPLICATION FILED MAR. 31, 1909.

Patented Mar.1,1 910.

2 SHEETS-SHEET 1.

wkmgsss A. L. DOW. MACHINE FOR COLD ROLLING DISKS. APPLICATION FILEDMAR. 31, 1909.

950,900. Patented Mar. 1,1910.

2 SHEETS-SHEET 2.

21 +3 25 l n n UNITED STATES PATENT orrios.

ABRAHAM LINCOLN DOW, F GROVER, COLORADO, ASSIGNOR T0 HIMSELF, AND JOHNF. ALBRIGHT, OF DENVER, COLORADO.

MACHINE roe COLD-ROLLINC+ nIsKs.

Specification of Letters Patent. Application filed March e1, 1909.

To all whom it may concern:

Be it known that I, ABRAHAM LINCOLN Dow, a citizen of the United States,and a resident of Grover, in the county of Weld and State of Colorado,have invented a. new and Im roved Machine for Gold-Rolling Disks, 0which the following is a full, clear, and exact description. p

This invention relates to machines adapt.- ed to sharpen and roll disksused in plows,

disk harrows, seeders, drills, and the like.

The object of the invention. is to provide a device which is simple inconstruction and easily operated, and is of light weight so that it maybe carried about from place to place. The device is also so constructedthat it can be carried into the field and readily attached to an engineusedto reciprocate a plow, to clrive the same. V

The invention consists in the construction and combination of parts, tobe more fully described hereinafter and particularly set forth in theclaims.

Reference is to be had to the accompany-- ing drawings forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the views, and in'which Figure 1 is a planview of the device, a part being broken away; Fig. 2 is a verticalsection on the line 22 in Fig. 1, look ing in the direction of thearrow; Fig. 3 is an end view of the device in elevation, look ing in thedirection from right to left, in Fig. 2;. and Fig. 4 is a sectionthrough the roller-supporting hearings, on the line 44 in Fig- Referringmore particularly to the separate parts of the device, 1 indicates thebase of the machine, which is adapted to be fastened in any suitablemanner to a support.

This base 1 has openings 2 therein, through which bolts may be passed tofasten it to a suitable support. On the base 1. are suitably securedbearings 3 for a shaft 4. This shaft 4 is the drive shaft, and is drivenby any suitable motormeans, such as a belt applied to a pulley 5. Thisshaft 4 is prevented from endwise movement in its bearings by means of acollar 6, suitably secured to the end thereof. Suitably secured on thedrive-shaft 4, between the pulley 5 and one of the bearings 3, is apinion 7. This pinion 7 engages a gear 8, which is suitably securedv ona shaft 9 journaled in bearings 10 and 11 in the uphas a hearing at oneend in the upright 12,

as shown at 15, and has also a floating bearing at the other end, whichis designated as 16. This floating bearing 16 slidably engages thesupporting upright 13, which has flanges 17 and 18 on either sidethereof, which are adapted to guide the hearing. The floating bearing 16rests on a spring 19, which is supported by the top of that portion ofthe supporting upright 13 which lies between the flanges 17 and 18. Acover plate 20 is adapted to rest on the upper surface of the bearing16. This cover plate 20 has a pair of apertures therein, through whichare adapted to pass bolts 21 and 22.

These bolts 21 and 22 pass through openingsin the base of the supportingupright 13 and are engaged by nuts 23 and 24 at their upper ends. Thesebolts 21 and 22 are thus adapted, by means of the nuts 23 and 24, toforce the floating bearing 16 toward the upright 13, against the tensionof the spring 19; thus the distance between the shafts 9 and 14 may bevaried to an appreciable degree, the bearing 15 being made loose enoughto allow for a limited amount of play.

F ixed. on each of the shafts 9 and 14 by any suitable means, such ascotter-pins 25 and 26, are intermeshing gears 27 and 28. The gear 27drives the gear 28; thus the shaft 14 is driven. from the shaft 9. Theshafts 9 and 14 are reduced at their outer ends, to receive sharpeningrollers 29 and 30.

The sharpening roller 30 is slightly crowned on its periphery, while theroller 29 is flat on its periphery with beveled edges so as to betterreceive the disk to be rolled and sharpened. The rollers 29 and 30 areheld on to the shafts 9 and 14 by means of nuts 31 and 32. The nut 32 isright-handed and engages a right-hand thread on the shaft 14;

the nut 31 is left-handed and engages a lefthand thread on the shaft 9.Thus the rotation of the rollers 29 and 30 tends to tighten the nuts 31and 32 onto the shafts 9 and 14.

Rotatably supported in hearings in the base 1 is a bracket 33. Thisbracket 33 has an upwar'dly' -extending. portion 34,. from which extendsat an angle thereto another portion 35. This portion is adapted toreceive a work-supporting member 36. This work-supporting member 36consists in a member 37 which has a transverse hole therein adapted toslide on the bracket portion 35. On either side of the bracket portion35 and sliding onto the pin 37 are a pair of collars 38 and 39. Thecollar 39 has a pair of wedge-shaped slots 40 on opposite sides thereof.These wedgeshaped slots are adapted to engage the bracket portion 35 onits under side. The collar 39 is adapted to be forced against the underside of the bracket portion 35 by means of a nut 41, which engages ascrew-thread on the lower end of the pin 37. The collar 38 is adapted tobe adjustably fastened to the pin 37 by means of a set-screw 42. Thusthe pin 37 may be fastened to the bracket portion 35 in any adjustedposition thereon by means of the clamping action of the collars 38 and39 on the bracket portion 35. The bracket 33, as mentioned above, isrotatable in its bearings. This permits an adjustment of the bracketportion 35 relative tothe base 1. The bracket 33 is held in any adjustedposition by means of a brace rod 43. This brace rod 43 is fastened atone end to the base 1 as at 44, by any suitable means, and fastened atthe other end by means of a head 45 having an opening therein. This head45 is secured to the bracket portion 34 by means of a set-screw 46. Thebrace 43 isdivided intermediate its ends, and is oined by means of adouble nut 47, which is adapted to engage right and left-hand threads onthe two divided portions; thus the distance between the point of support44 and the point where the head 45 engages the bracket portion 34, isvaried by means of the nut 47, thereby adjusting the position of thework-support 36.

48 represents a disk taken from a diskharrow, plow or the'like. Thisdisk 48 is shown as engaging the pin 37 on the work-' support 36, andhas a portion of its periphery placed between the rolling and sharpeningrollers 29 and 30. These rollers 29 and 30 may be of any suitablematerial, but preferably of toolsteel. The disk 48 is adapted to bepressed between the rollers 29 and 30 and submitted to the cold rollingand sharpening action of the rollers.

The operation of the device is readily understood from the abovedescription. The machine is adapted to be carried to the field where theplowing or harrowing operation is being carried on, and is also adaptedto be fastened to the frame of a motor plow. The pulley 5 may then beconnected in driving relation with the motor plow by means of a belt.The disks to be rolled and sharpened are to be secured on the worksupport 36 in an' adjusted position suitable to their size and form. Therollers 29 and 30 are then rotated by means of the shafts 9 and 14,

which are connected in driving relation by means of the gears 27 and 28.The shaft 29 is driven by means of the gear 6 and pinion 7 from theshaft 4, to which is fixed the belt-driven pulley 5.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. In a device of the class described, the combinationwith a base, of upright supports on said base, a pair of shaftsjournaled on said uprights, one of said shafts having a floatingbearing, driving connections between said shaft, sharpening rollerssecured to said shafts, means for driving one of said shafts, a bracketsupported on said base so as to permit of angular movement, means foradjusting and holding said bracket in adjusted position relative to saidbase, and a work-support adjustably secured to said bracket, said worksupport comprising a pin having an opening therein through which thebracket is adapted to extend, and a pair of collars adjustably securedin said pin, located upon opposite sides of the bracket and adapted toclamp said pin to said bracket.

2. In a device of the class described, the combination with a base, of apair of shafts rotatably supported on said base, rollers secured to saidshafts, means for driving said shafts, a bracket extending parallel tosaid shafts'for a portion of its length, adjustably supported on saidbase, a turnbuckle brace connecting said bracket with said base, and awork support adjustably secured on said bracket.

3. In a device of the class described, the combination with a base, of apair of shafts rotatably supported on said base, rollers secured to saidshafts, means for driving said shafts, a bracket adjustably supported onsaid base and extending parallel to said shafts atone end and at aplurality of angles to said shafts at the other end, and a work-supportadjustably secured on said brackets on said last-mentioned end, in juX-taposition to said rollers.

4. In a device of the class described, the combination with a base, of apair of shafts rotatably supported on said base, rollers secured to saidshafts, means fordriving said shafts, a bracket adjustably supported insaid base, extending parallel to said shafts at one end, and at an angleto said shafts at the other end, and a work support adjust-- ablysecured on said last-mentioned end.

In testimony whereof I have signed my

